Dr. Louis Nardizzi, MD
- Medicare services, 2021
- 481
- Part D claims, 2022
- 86
- Industry payments
- $694
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 8210 Walnut Hill Ln, Dallas, TX 75231-4411
- Practice phone
- Call (214) 368-7787
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Texas Internal Medicine
Primary care practice · Dallas, Texas
Find Dr. Nardizzi's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Louis Nardizzi is an internist in Dallas, Texas
Dr. Nardizzi practices at Texas Internal Medicine in Dallas, Texas.
Dr. Nardizzi's NPI, 1972554947, was assigned on May 15, 2006. Dr. Nardizzi graduated from UT Southwestern Medical Center in 1975. Dr. Nardizzi's Texas license number on file is E4560.
- NPI
- 1972554947NPI Registry (opens in a new tab)
- NPI enumeration date
- May 15, 2006
- NPI status
- Active
- Practice phone
- (214) 368-7787
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1975
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Louis Nardizzi practices at 2 locations in Dallas, Texas
Dr. Nardizzi's primary practice is Texas Internal Medicine, at 8210 Walnut Hill Ln, Dallas, TX 75231-4411. The practice phone is (214) 368-7787. The NPI Registry lists Dr. Nardizzi's practice address as 8200 Walnut Hill Ln, Dallas, TX 75231.
- Texas Internal MedicinePrimary8210 Walnut Hill Ln, Dallas, TX 75231-4411Phone(214) 368-7787
- NPI Registry address8200 Walnut Hill Ln, Dallas, TX 75231 · Dallas CountyPhone(214) 368-7787
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Louis Nardizzi is affiliated with 1 site of care and 1 medical group
Dr. Nardizzi's primary practice is Texas Internal Medicine in Dallas, Texas. Dmand AI also links Dr. Nardizzi to 1 medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Louis Nardizzi's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nardizzi practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Texas Internal Medicine | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Louis Nardizzi is one of 8,437 internists in Texas
Internal medicine is Dr. Nardizzi's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Nardizzi has a license on file in Texas.
Specialties and state licenses
- Internal medicine, TexasPrimary
Internists near Dr. Nardizzi
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Louis Nardizzi billed Medicare for 481 services in 2021
CMS data shows 481 Medicare services from Dr. Nardizzi across 8 procedure codes in 2021. Medicare paid $28,614 for them.
Dr. Nardizzi's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 3472021: 18846%
- Lab and pathology
- 2020: 1202021: 1191%
- Other services
- 2020: 802021: 9114%
- Tests and treatments
- 2020: 1032021: 8319%
Where Dr. Nardizzi's Medicare services took place, 2021
- In an office41286%
- In a facility6914%
Dr. Nardizzi compared with the Texas median for internists, 2021
- Dr. Nardizzi
- Texas median
- Medicare services
- 481vs 53911% below
- Part D claims
- 86vs 28970% below
Medians across 7,794 internists in Texas with Dmand AI profiles that report each measure.
Dr. Nardizzi's most billed Medicare procedure codes, 2021
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Nardizzi?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Nardizzi and other internists in Texas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Louis Nardizzi's patients have a median age of 63
Across all payers, Dmand AI patient panel data puts Dr. Nardizzi's median patient age at 63, with 35% women.
Dr. Nardizzi's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women35%
- Men62%
Source: Dmand AI Patient Panel Data
Dr. Louis Nardizzi wrote 86 Medicare Part D claims in 2022
In 2022, Dr. Nardizzi wrote 86 Medicare Part D claims. Every claim was for a generic drug. They cover 6 drugs, with $1,201 in total drug cost. In 2021, CMS named 1,273 claims across 41 drugs.
Dr. Nardizzi's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 1,2732022: 8693%
Drugs named by CMS: 6 in 2022, 41 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Louis Nardizzi received $694 in industry payments from 2016 to 2020
CMS Open Payments shows 32 general payments to Dr. Nardizzi from 12 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 100% of the total. Smith & Nephew, Inc. paid the most, $412.
General payments to Dr. Nardizzi by program year, 2016 to 2020
Companies that paid Dr. Nardizzi the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Louis Nardizzi graduated from UT Southwestern Medical Center
Dr. Nardizzi graduated from UT Southwestern Medical Center in 1975.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Louis Nardizzi accepts plans from 6 insurance carriers
Dr. Nardizzi is in network with 6 carriers, including Elevance, Blue Cross Blue Shield of Michigan and HCSC. PPO plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Michigan
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Arkansas Blue Cross and Blue Shield
Plan types Dr. Nardizzi accepts, by number of carriers
- PPO6
- Medicare5
- HMO3
- POS2
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Louis Nardizzi's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Louis Nardizzi
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Louis Nardizzi's NPI number?
Dr. Louis Nardizzi's NPI number is 1972554947. It was assigned on May 15, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Louis Nardizzi?
Dr. Louis Nardizzi is an internist in Dallas, Texas. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Louis Nardizzi practice?
Dr. Nardizzi practices at 8210 Walnut Hill Ln, Dallas, TX 75231-4411. Dr. Nardizzi also practices at 8200 Walnut Hill Ln, Dallas, TX 75231. Dr. Nardizzi's primary practice is Texas Internal Medicine in Dallas, Texas. Dmand AI also links Dr. Nardizzi to 1 medical group.
What is Dr. Louis Nardizzi's office phone number?
The practice phone on file for Dr. Nardizzi is (214) 368-7787.
What is Dr. Louis Nardizzi's medical license number?
Dr. Nardizzi's Texas license number on file is E4560.
Does Dr. Louis Nardizzi accept Medicare?
Yes. CMS data shows Dr. Nardizzi billed Medicare for 481 services in 2021.
What services does Dr. Louis Nardizzi bill to Medicare?
In 2021, Dr. Nardizzi's most billed Medicare services were office visit, established patient (99214), lab and pathology test (81003) and office visit, established patient (99213).
Where did Dr. Louis Nardizzi go to medical school?
Dr. Nardizzi graduated from UT Southwestern Medical Center in 1975.
What drugs does Dr. Louis Nardizzi prescribe most?
In 2022 Medicare Part D data, Dr. Nardizzi's most prescribed drugs by claims were Levothyroxine Sodium, Pravastatin Sodium and Amlodipine Besylate.
Has Dr. Louis Nardizzi received payments from drug or device companies?
CMS Open Payments shows $694 in general payments to Dr. Nardizzi from 12 companies from 2016 to 2020. The largest total came from Smith & Nephew, Inc.
How long has Dr. Louis Nardizzi been practicing?
Dr. Nardizzi graduated from medical school in 1975, 51 years ago.
What insurance does Dr. Louis Nardizzi accept?
Dr. Nardizzi is in network with 6 carriers, including Elevance, Blue Cross Blue Shield of Michigan and HCSC. PPO plans come from the most carriers, 6. Check the plan with the practice before a visit.
Selling to internal medicine practices?
See internists in Texas by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card